Door-operating mechanism for cars and the like.



W. ERWlN, J. N. LLOYD, M. D. MANN, JR. & R L. WINCHELL.

DOOR OPERAHNG MECHANISM FOR CARS AND THE LIKE. APPucATmN FILED SEPT. 29. 1914.

1 142 408. PatentedJune 8, 1915.

3 SHEETS-SHEET1.

Willie? Z. Erwi Jasep m W 3 n we vuccvw W MJMW W. E. ERWIN,'L N. LLOYD, M. D MANN, IR. 81 R. L. WINCHELL.

DOOR OPERATING M'ECHANXSM FOR CARS AND THE LIKE.

APPUCATION HLED SEPT. 29, 1914.

1,142,4QS PatentedJune 8, 1915 3 SHEETS-SHEET 2.

W. E. ERWIN, J. N. LLOYD, M. D. MANN, JR. '& R. L. WINCHELL.

DOOR OPERATING MECHANISM FOR CARS AND THE LIKE.

APPLICATION FILED SEPT. 29, \914.

1,142,408. PatentedJune 8,1915.

5] m an Mow UNITED sra'rsis PATENT osrrcn.

\VALTEE E. ERWIN, JOSEYE N. LLOYD, MATTHEW l3. MANN, 5B... AND RAYMOND I. WINCHELL, OF SANTA BARBARA, CALIFORNIA.

DOOR-OPERATING LIECHANXSM FOB CARS AND THE LIKE.

Specification of Letters Eatent.

Patented June 8, AS 15.

' Application filed September 29, 1914. Serial No. 864,044.

2'}; all whom it may concern:

lie it known that we WALTER E. Enwnr Jossrn l\". Libya), ll'la'rrnnw 1). Mann, J13. and Ransom) L. WIKGHELL, citizens of the UnitedStates, and residents of Santa Bar- ,ba-ra, Santa Barbara county, California, have invented new andlnseful 1m rovements Relating to Door-G crating Mes anism for Cars and the like, which the following is a specification, reference being had to the accompanying drawings,in which- Figure 1 is a section throughthe center of a car, showing the doors onone-side of the car opened by our mechanism; Fig. 2 is an elevation partly in section, showing the doors on one side of the carin closed nosition; Fig. 3 is a plan view showing the lever mecha nism controlling the opening of the doors; Fig. 4 is a plan viewof our door operating mechanism on an enlarged sca-le in position when the ,doors on both sides of the car are closed; Fig. 5 is a plan View similar to Fig. 4: but showing the pbsition of onr operating mechanism whlen the doors on one side of the car are open, Fig. 6 is a sectional plan View showing the screw arrangement which moves the operating levers; Fig. 7 s an elevation of that portion of our mechan sm shown in Fig. 6; Fig. 8 is a sectionalyiew on-the line VIII-VH1 of Fig. 6; and Fl 9-is a sectional View similar to Fig. 8 but showing the operating lovers in locked position.

Our invention has to do with cars in which doors are positioned directly oppo site each other. and provides a simple mechanism whereby either the doors on both sides of the car or the doors on one side-or the other of the car may be opened through the .movement of a single control handle.

Referring to the drawinggin which a preferred form of our invention is shown. 3 is a car body of ordinary construction. having on both sides doors 3. In the embodiment of our invention shown in the drawings one set of doors {3 is intended to be usel for the on trance of passengers. and one set as an exit. It is apparent, however. that in pl: cc of the small folding doors shown various other types of folding or sliding doors may be substituted. As shown in the drawings the entrance and exit doors 3 are separated. by

posts, or columns 4, one being positioned on each side of the car. Running between the posts 4 is a hollow shaft case 5, which is divided into two portions, between which is a considerable gap, as shown in Fig. 5.

' The two parts of the shaft case 5 are connected by the bracket 6. The bracket 6 is supported by a column 7 which runs from the floor of the car, and may carry a fare box 8. Vvithin the shaft case 5 runs a shaft 9, having near its ends ri ht and left hand threaded portions one 0 which is designoted in Fig. 6 by the numeral 10. Each of the right and left hand threaded portions of the shaft 9 screws into a female screw, one of which is designated by the numeral 11 in Fig. 6. Extending from thefemale screw 11 are lugs 12, and extending from the screw corresponding to the female screw 11 (which is not shown in the drawings) are lugs 13. The lugs 12 slide in slots 14. in the shaft case 5, and the lugs 13 slide in corresponding slots in the other half of the shaft case 5.

Pivoted to the lugs 12 are connecting rods 15, arranged to move the lever arms 16.

- The lever arms 16 are keyed to shafts 17, wh1ch carry the two doors 3. which are near est to the post 4:. .The two doors 3 farthest away from the post 4 are carried by shafts 18 and are operated by the lever arms 21.

Pivoted to the lugs 13 are connecting rods 22, which correspond to the connecting rods 15, and operate the doors on their side of the car through the lever arms 23, which are pivoted to the shafts 2%, the lever arms connecting rods 26 and the lever arms 27, which are pivoted to shafts In order that the shaft 9 may be rotated itcarries a sprocket wheel 29, upon which runs a chain 30. Attached to the two ends f the chain 30 are handles 31 and 3 and attached to the handles 31 and 32 is a cord 33. which runs around aapulloy whccl 3-1. W hen the handle 32 is pullcd down or the handle 31 is pulled up, thc shaft 9 will be rotated so that its right hand threaded portion 10 will screw into the female screw 11. and more the lugs 12 toward the center of the car in the slots 14:. At the same time the left hand threaded portion of the shaft 9, which corresponds t9 the portion desig 4 in the shaft case 5,.through which- Near the outer end of the 36 which is held in position of the sleeve 35.

an upwardly projecting arm '47, similar to. the arm 43, to which are attached handles hated by the numeral 10, will screw into its 'female screw and move the lugs 13 toward the center of the car in the'same manner that the lugs 12 are moved. This movement of the lugs 12 and 13, operating through the connecting rods 15 and 22, willopen the doors 3 on both sides of the car.

Under ordinary conditions it is desirable that the doors 3 on one side of the car be locked in closed position, whil'ethe doors opposite are free to open and close. That this may be done, we provide the shaft case 5 with looking sleeves 35, and 36. The sleeve 35, which is held in place on the shaft case 5 by rings 37 and 38, is provided with slots 39, corresponding to the slots 14 the lugs 12 may slide. sleeve 35 the slots 39 have enlargements 40, adapted to receive the lugs 12. If desired,

the sides of the enlargements 4O mav beslightly beveled, in order that the lugs 12 may be held tightly in position. We prefer that the enlargements 40 of the'slots 39 shall be made to extend toward the bottom of the car on one side of the sleeve 35, and toward the topof the car onthe other side of the sleeve 35. The sleeve 35 is provided with a guide ring 41, to assist in causing the lugs 12 to enter the enlargements 40, and a ring 42 'niay be attached to the lugs 12 adapted to slide along the sleeve 35 to hold the lugs 12 in correct relative position. In *order to rotate the sleeve 35, it has near one of its ends an upwardly extending. arm 43, to which may. be attached handles 44. If the sleeve 35 be rotated by one of the handles 44 when the doors are closed, the lugs 12 will enter into the enlargements 40 and will thereby be prevented from sliding along the slots 14 in the shaft case 5, and will be held in fixed osition. The sleeve by rings 45 and 46, is provided. with slots and enlargements similar to the slots 39 and enlargements 40 It is also provided with 48. When it is desired that the doors on both sides of the car may be opened simultaneously, the sleeves 35 and 36 are rotated so that the lugs 12 and 13 will be free to move in their respective slots in the shaft case 5. If it is desired to have the doorson one side of the car locked, the sleeve on that side of the car is rotated so that it embraces the lugs projecting from the female screw member on that side ofthe car. The sleeve on the opposite side of the car is left in its original position. When the sleeves 35 and 36 are arranged in the manner which has just been described, and the shaft 9 is rotated, it is evident that both its right and left hand threaded portions will screw into adapted to open the doors their respective female screws, but as one of the female screws is locked in place by its corresponding sleeve, the shaft 9 will move laterally in theshaft case. 5, as shown in Fig. 5. The lateral movement of the shaft 9 will not be obstructed by the sprocket wheel 29, owing to the gap "between the two portions of the shaftcase 5, within which gap the sprocket wheel will move. Owing: to the lateral movement of the shaft Qfit. will require but half as great a rotation of the shaft 9 to open the doors on one side of the car as is required to both sides of the car simultaneously.

As shown i'n'Figs. 1 and'2 we provid steps outside of the doors 3 thatmay be operated simultaneously with the doors 3. by any well known form of mechanism.

It is evident that many variations may be made in the arrangements of'our mechanisfm without departing from the spirit of on invention, since at we claim is:

1. The combination of a car, doof's'on opposite sides of said car, operating means on both sides of said car simultaneously and selective means adapted to lock the door on one side of the car and lea e the door on'the oppositeside of the car free to be opened. bysaid operating means. i

2. The combination of a car, doorson opposite sides of said car, levers attached to said doors, operating means ada ted to move the said levers to open the sai doors on both sides of the car simultaneously, and selective means whereby the door on one side of the car maybe locked while the- -d0or on the opposite side of the car is be- 'ing 0 'ened by said operating means.

he combination of a car, doors on opposite sides of said car, a control handle at all times connected with said doors, and

selective means whereby the door on one open the doors on side of the car may be opened by said con- I trol handle without opening the'door opposite.

4. The combination of a car, doors on opposite sides of said car, operatingmechanism connected with said doors, a control handle connected with said operating mechanism whereby the doors on both sides of the car may be opened simultaneously, and

, selectivemeans adapted to lock the door on one side of the car and divert all of the movement of said operating mechanism to the door opposite.

5. The combination of a car, doors on opposite sides of said car, a shaft between the said doors, a right hand threaded portion at one end of the saidshaft, a left hand threaded portion at the other end of said-shaft, threaded blocks adapted to coact with the said threaded portions of the 1,1s2,sos

said shaft, levers oonficting said doors and said blocks and means for rotating the said shofi. k

i combination of a car, doors on opposifo sides of said car, a shaft between said $100.18 a light hand threaded. poriiifiil at one end of the said shaft, :1 left said blocks; means for rotating said shaft and selective means whereby one of said blocks may be held in fixed position.

WALTER E. ERWIN. JOSEPH N. LLOYD. MATTHEW D. MANN, JR. RAYMOND L. WINCHELL.

Witnesses:

A. R. EDMQNDSON, FLORENCE C. HARTN LL. 

